Results 141 to 150 of about 304 (180)

Dynamics of a Wheeled Cart Driven by a Savonius Rotor

Mekhatronika, Avtomatizatsiya, Upravlenie, 2021
Savonius rotor is one of relatively wide-spread type of wind turbines. The rotation rate of this rotor is considerably lower than that of horizontal axis wind turbines and Darrieus wind turbines. However, it starts rotating at small wind speeds, doesn’t require any additional devices to ensure its re-orientation in case of change of the wind direction,
A. P. Holub, A. F. Zubkov, A. A. Masterova, Y. D. Selyutskiy   +3 more
openaire   +1 more source

Valve-Aided Twisted Savonius Rotor

Wind Engineering, 2006
Accessories, such as end plates, deflecting plates, shielding and guide vanes, may increase the power of a Savonius rotor, but make the system structurally complex. In such cases, the rotor can develop a relatively large torque at small rotational speeds and is cheap to build, however it harnesses only a small fraction of the incident wind energy ...
M. Jaya Rajkumar, U. K. Saha
openaire   +1 more source

Slatted-blade Savonius wind-rotors

Applied Energy, 1991
Abstract The Savonius rotor can develop a relatively high torque at low rotational speeds and is cheap to build, but it harnesses only a small fraction of the wind energy incident upon it. One initially attractive proposal for augmenting its harnessing effectiveness, was to fit an array of hinged flaps in place of the curved parts of the turbine's ...
P. Reupke, S.D. Probert
openaire   +1 more source

Performance tests on helical Savonius rotors

Renewable Energy, 2009
Conventional Savonius rotors have high coefficient of static torque at certain rotor angles and a negative coefficient of static torque from 135° to 165° and from 315° to 345° in one cycle of 360°. In order to decrease this variation in static torque from 0° to 360°, a helical Savonius rotor with a twist of 90° is proposed.
KAMOJI, MA, KEDARE, SB, PRABHU, SV
openaire   +2 more sources

Aerodynamics Of The Savonius Rotor: Experiments And Analysis

Proceedings of the 25th Intersociety Energy Conversion Engineering Conference, 2005
An approach to the design of the Savonius rotor based wind energy operated irrigation system is described with appropriate references cited for further details. In the beginning, results of the extensive wind tunnel test program are presented which assess parametric influence and arrive at an optimum con figuration.
V.J. Modi, M.S.U.K. Fernando, N.J. Roth
openaire   +1 more source

On the aerodynamic design of the savonius windmill rotor

Journal of Wind Engineering and Industrial Aerodynamics, 1985
Abstract This paper examines the performance characteristics of the Savonius windmill rotor under field conditions. Test data were collected on the speed, torque and power of the rotor at a large number of wind speeds for each of seven values of the rotor overlap ratio.
openaire   +1 more source

Model Testing of Single- and Three-Stage Modified Savonius Rotors and Viability Study of Modified Savonius Pump Rotor Systems

International Journal of Green Energy, 2009
The suitability of modified Savonius wind rotors for water-pumping application is studied with a mathematical model developed for estimating the discharge over a period of time. Single- and three-stage modified Savonius rotors, which are extensively tested in an open jet wind tunnel, are chosen.
GHOSH, P, KAMOJI, MA, KEDARE, SB, PRABHU, SV   +3 more
openaire   +2 more sources

Flowfield around a partially-blocked Savonius rotor

Applied Energy, 1991
Abstract One way of power augmentation in the case of Savonius rotors is through preventing the upstream flow from reaching the upwind bucket. To gain more insight and a deeper understanding of this mechanism, a discrete vortex method was applied to the behaviour of a Savonius rotor with one bucket shielded.
M.A. Kotb, T.K. Aldoss
openaire   +1 more source

Application of Savonius Rotor for Hydrokinetic Power Generation

Journal of Energy Resources Technology, 2019
AbstractTechnological advancement is specifically identified by the usage of energy. The energy requirement is increasing because of the exponential population rise, increased industrial activities, and subsequent accelerated economic activities in both urban and suburban areas.
Oying Doso, Sarsing Gao
openaire   +1 more source

Performance Investigation of a Twisted Savonius Wind Rotor

Journal of Advanced Research in Fluid Mechanics and Thermal Sciences
For human welfare, electrical power is necessary. For many years, there has been a great deal of interest in wind energy because it is a clean, sustainable energy source. Because of its cheaper cost and independence from wind direction, the Savonius vertical axis wind rotor has the advantage of being suitable for certain implementations as an energy ...
Mariem Lajnef, Mabrouk Mosbahi, Mouna Derbel, Zied Driss, Antonio Pantano, Tullio Tucciarelli, Marco Sinagra, Calogero Picone   +7 more
openaire   +1 more source